My body has become flexible by doing stretching exercises every morning.

We worked together to achieve our goal.

He used a metal detector to search for treasure on the beach.

Kei's birthday party was filled with everyone's jubilation.

The photoelectric effect is a phenomenon where a material emits electrons after absorbing light.

An electrooculogram is a test method to record the movement of the eyeball.

He measured muscle activity using an electromyograph.

The doctor used an electrocardiograph to check the condition of my heart.

I examined muscle activity using an electromyogram.

He searched for a flashlight in the darkness.